@misc{indiciae8ceeb1c5cb8a,
  title = {Diatom zonation in southern Oregon tidal marshes relative to vascular plants, foraminifera, and sea level},
  author = {A.R. Nelson and K. Kashima},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70017482},
  note = {Source identifier: 70017482}
}